Typewriting machine



May 21, 1929. G, w, CAMPBELL 1,713,594

TYPEWRITING MACHINE Filed Feb. 20, 1922 2 Sheets-Sheet l /m/en for.'

j A JV 477% May 21 1929. G. w. CAMPBVELL 1,713.594

TYPEWRITING MACHINE Filed Feb. 20, 1922 2 Sheets-Sheet 2 Patented May21,v 1929.

UNITED STATES PATENT OFFICE.

GEORGE W. CAMPBELL, OF HARTFORD, CONNECTICUT, ASSIGNOR TO UNDERWOODELLIOTT FISHER COMPANY, OF NEW YORK, N. Y., A CORPORATION OF DELAWARE.

TYPEWRITING MACHINE.

The present invention relates to sounddeadening casings in whichtypewriting machines are adapted to be operated.A

'A casing of this character, at its base, i ordinarily and preferably ofa width conforming substantially toy the width of thc typewritingmachine, but, abovev the base, is iiared or oifset laterali 1 to,V aconsiderably greater width in the upper vportion of the casing toprovide spacefor the travel of the carriage of the typewriting machine.It is desirable that a casing of this character be adapted to be used onthe baseboard or drop-leaf of a typewriter desk. Ordinarily, however,this baseboard or drop-leaf is sunken or lies several inches below thetop of the desk; and may not be of a width equal to the width of theflared or expanded upper portion of the casing. It may therefore happenthat, onV attempt to the casing on the baseboard, the expanded portionthereof will be engaged by the walls of the desk at the sides .of thehaseboard, and seating of the casing and machine thus prevented.

An object of the present invention is the provision of a pedestahfincombination with the casing, to support the, casing and machine at suchan elevation upon the baseboard that the expanded portion of thefcasingwill clear the parts of the desk at the sides of the baseboard. Y -Afurther objectfof the `invention is the provision of means for holdingthe casing and pedestal in assembled condition ,which means shall at thesame time serve to anchor the machine and the casing. In thisconnection, a feature of the invention `is the provision of a draw-leafto whichl the machine issecured by the holding and anchor- -ing meansreferred to,`so thatthe entire assembly, securely locked and held, maybe positioned on the baseboard of the desk and held theretoA by slidingthe edges of the draw-leaf under suitable retaining devices vonthebaseboard. A feature of the invention `is the provision of holdingmeans, accessible from the bottom of the assembly, for

--locking the parts together and for releasing them from one another;thus obviating the necessity of manipulating the holding meansv from theinterior of the casing. e In the use of the draw-leaf it is onlynecessary to slide the same out upon rthe baseboard ofthe desk foraccess to the holding means, when it is desired to remove the casing. Y

A casing of the character mentioned usually has a window-pane oftransparent glass inthe Wall thereof, through which the operator mayobserve the printing on vthe platen. Various expedients have beenresorted to for Vpreventing objectionable reflections from the surfaceof the glass to the eyes of the operator. Blinds have been provided,ypositionable upon the casing in such manner as to intercept the rays oflight directed at the window-pane. A further object of the presentinvention is the provision of a. blind for this purpose, which may bereadily, and in a simple manner, attached'to and detached from thecasing; and which may be marketed as an article, unitary in itself, tobe acquired and used, if wanted; and which, to be applied to the casing,requires no modification or special structure of the latter.

Other features and advantages will hereinafter appear.

In the accompanying drawings,

Figure 1 isa view in sideelevation, partly cross-sectional, showing thecasing on its pedestal on the draw-leaf of a-desk; the typewriting'machine being indicated in the casing. -v f l Figure 2 is across-sectional detail view, showing the attachment ofl the blind to thecasing cover.

Figure 3 is a front'view of the assembly shown in Figure l, except thatthe typewriting machine is notindicated.

Figure 4 isa top plan view of the pedestal. f

Referring to the drawings, the lcasing is shown as comprising abody-portion 10 having a cover-part 11 hinged thereto at 12.

The casing isy preferably a die-casting, having machine 15 rest upon thebottom piece 13, and the keyboard-extension 16 of the typewritingmachine projects through an opening 17 in the front of the casting 10. Aline-space lever 1S, a carriage-release lever 19 and a carriage-returnarm 20 project iic 4through a slot formed by the upper front edge ofthe, casting l and the lower front edge ofV the 'cover Vl1, sor thatthese "levers and arm may not prevent movement of the and a similarcushion 22, on the lower front edge of 'the cover-part, abut each other,so that the slot,

the carriage, is closed except Where the llevers protrudetherethrough.'I

.,Therbottoni piece 13e-.ot 'the casing v,rests upon aIpla/ttorm23,"Which is the top of' the pedestal 24..V )The pedestal is-shown as ahollow casting of substantially? rectangular plan, open at tlie'bo'ttom,Vand having side Walls'Whiclnitor ornamentation, are shownV as. curved..The Vlower edges oigthe" `side Walls of the'pedestal are cutaway, as at25, -to clear thedraWdeaf 26, except where such cuts form feet 27 atthecornersof'the pedesta-l forsupporting'the latter utponfthe draw-leaf. Y

Bosses 2S' formed on the casting oi the pedestal :serve 'asV elongatedbearings for bolts 29,1'Which-are inserted upward-'through .the lugs'glfusually found on typewriting Vthe draw-leaf `andftlirough the bottonipiece 13 of the casing,- b'eyond'rwhich hey .are threaded-into .nuts 30in engagement with machines-for *attachmentof the latterfto theirsupports. The' boltr'heads V2r lie inl Vcountersinlns L33 in the'bottoinof .the drawleaf, so that the'latter may lie iiiat. l/Vheii thebolts are tightened, 'thcfeet 140i the f machine arefdrawn firmly downupoiigthe Vcasing bottom piecel, which then forms a V.felt covering forthe pedestal platform-AV peripheral':flange 34v onlthe pedestalplatforni' serves to center and to 'prevent lateraly 1 `displacementofthesheet 13. The 'bosses 2b i Y preferably dependthe'full Width-of theped estal, and have their ends machine-finished 'to engageithedraw-leaf, soV as.v tol supportl the platform 23- and. `prevent.fracturing oi the latter ivlienth'e bolts are tightened( il, -As shown.in :Figure .4, the platform` 23 is Vcut axvay centrally'at 35 foreconomy of material, and to make theV .pedestal as 4light as may beinconformityvvith its required strength. Ylt Will be noted, howeverthatithe platform .is brought? out,=as at the cor' ners 36, around thepoints .Where the bolts 29 `pass.thi'ni'gh the same, and Where theV Ifeet ...14 of' tlieftypewritingmachine bear lipon'the same-.-4 In Figure'4 the position of the typewriting` machine is indicated in dottedlines. to shoivathe bearing points of 60 the* feet thereof zon thepedestal. platform.

7.-. ;ReferringltoFigure 3, the drop-cover 37 ofthe desk is shownA'in-the usual depressed position zbetweeii'V the desk-side-piece's 38..The draw-leaf 26. is shown as held down .upon thedro'p-cover 37 byanglevpieces 39,

2 i y: fifriaseiwhich` are offset at their upper ends at 4() to overliethe top of the draw-leaf. ,This

-iiorm of attachment permits the drivleat' the bolt-heads 32 is desiredto permit otref moval of the casing from the machine. Valong Which-theoperating levers travel -With Tliefcasingxhas the-usual opening 4l inthe top ofthe cover 11, through whichthe operatoiymay observe theprinting en the platen.AV A rectangular .ribbing 42, depending inwardromthc top of the cover, serves as a frame for al Window 43 of glass orother transparent material; and clamps :44

serve to `hold.. the-Window-pane 43 againsta Y seat 45 inV the, ribbing42. Sheet-metal earsV 46, secured byv screws 4'? -to the sidewalls ofthewindowV frame, servo as bearings Yfor Divot ins 4S on whichare-mountedV 7 or plates 49 which support a blind `50.V The platesr49are cutaway at 5,1 'centrally ofV their vupper edges, and, rforward and.rear- VWard of .theseV cuts "5l, have offsets. 52 to lwhich the blind`is soldered or otherWise se- In VFigure 1 the blind-is shown fse't yat,l

such an angle that its Vrear edge 55 rests upon or is in Contact withthe top o'v the cover. The vangular"setting ot the blind may, hoWever,bevaried at will by' loosening i thenuts 56 on the screws48, which serveas the pivot' pins, andi byV tightening thesefnuts ater the arms 49havebeen swung to the y-desired position. p

It lvvill be noted that uponV removal of the screws 47,the ears 46,together with thearins 49 andlblind 50, maybe removed asa unitV whendesired.VY It will alsobeznoted thatthe `blind and its connectionszareattacliable to the cover Without'modication of the latter,

and that the attachment is, so'fsimple .and QA I convenient that thefdevice lmay ,.bemarketed independently ofthe casing,` vto `be bought andattached to lthe -casingit desired.i

Variations ymay be',V resorted to 'Within 'the 'fi5- scope oftheiiivention, and portions-.ofthe claim Y1. In combination, asound-[deadening cas-V Ving for a Vtypewriting machine, -havingi .a

Y closed bottom conorinable in. WidthV tothe improveriientsmay,beilus'ed Without others.

Having thus Y'described ImyV-1yfwnptorn,I

Width ofthe machine to beenclosed-therein,

a Wider upperpart formed bylateral oli'-V sets to allow for the vtraveloitV the carriage E of the machine, a pedestal l:tor lthe casing,abaseboard, and bolts passing through the baseboard, pedestal, and bottomWall ofthe casing to connect with the machine andliold 13.0.

the latter, the casing and the pedestal to said baseboard, the pedestalbeing a hollow casting including a platform and hollow bosses dependingto the base thereof for bracing the platform and serving as bearings forthe bolts.

2. In combination, a sound-deadening casing for a typewriting machine,having a closed bottom conformable in width to the width of the machineto be enclosed therein, a wider upper part formed by lateral osets toallow for the travel of the carriage of the machine, a pedestal for thecasing, a drawlcaf, bolts passing through the drawleaf, pedestal, andbottom wall of the casing to connect with the machine for holding thelatter, the casing and the pedestal to said drawleaf, the pedestal beinga hollow casting including a platform and hollow bosses depending` tothefbottom of said casting for bracing the platform and serving asbearings for the bolts, a base for carrying the assembled casing,pedestal and drawleaf, and means for securing the latter upon said basein sliding relation thereto.

3. In combination, a sound-deadening casing for a typewriting machine,having a base conformable in width tothe width of the machine to beenclosed therein, a wider upper part formed by lateral offsets to allowfor the travel of the carriage o f the machine, a pedestal for thecasing, and including a platform, a Vsound-deadening mat for closing thebottom of the casing, and a flange on the platform of the pedestalembracing the mat peripherally to center the same. y

4. In combination, a sound-deadening casl ing for a typewriting machine,having a base conformable in width to the width of the machine to beenclosed therein, a wider upper part formed by lateral offsets to allowfor the travel of the carriage of the machine, a pedestal for thecasing, said pedestal being hollow and` including a platform formed ofcorner portions of plate for supporting the feet of the machine, bossesdepending from such plate portions, and bolts passing through the bossesfor anchoring the machine and casing to the pedestal, the bossesextending to the base of the pedestal to support the plate portions.

5. In combination, a typewriting machine, a sound-deadening casing, apedestal for said casing, a sound-deadening mat forming the bottom ofsaid casing and resting upon said pedestal, a base-board upon which thepedestal rests, and anchors passing through said base-board, pedestaland mat, and thence into engagement with a portion of the machine framewhereby to. secure said machine, casing, pedestal and base-boardtogether.

6.`In combination, a typewriting machine, a sound-deadening casingtherefor, a pedestal for said casing including a platform having aperipheral flange, a sound-deadening mat arranged within said flange forsealing the base of said casing, a base-board upon which the pedestal ismounted, and bolts assing through said base and'pedestal, and t encewithin the interior of said casing, whereby to engage both sides of themachine frame for securing said machine, casing and pedestal upon said`base-board.

7. In combination, a typewriter desk having a relatively narrow sunkenbase-board, a sound-proof casing for a typewriting machine having aclosed bottom conformable to the width of the machine to be enclosedtherein and a wider upper part formed by lateral offsets to allow forthe travel of the carriage of said machine, a pedestal for elevatingsaid casing above said base-board whereby the .wider olfset upper partof said casing clears the top of the desk at the sides ofthe base-board,and means for securing said casing, machine and pedestal to saidbase-board.

GEORGE w. CAMPBELL.

